GETTING MY FRT-15L3 TO WORK

Tag for facts. I've an older Stag 16" 9mm AR with zero recoil as a result of its excess weight. I had been just contemplating one other day that a Rare Breed trigger will be a blast in that matter.This is a fresh setup so thinking if it just wants some split-in? Every other Concepts? I absolutely are not able to go heavier to the bolt bodyweight be